Direct factory supply of certified heavy structural shapes, framing sections, and architectural long steel members ready for rapid project deployment.
Heavy-duty wide flange H-beams calibrated for multi-story portal framing, industrial trusses, and crane runway girders with precision cut-to-length and pre-drilled flange connections.
Equal and unequal structural angle profiles tailored for transmission towers, wind-bracing trusses, purlin supports, and secondary prefabricated architectural framing.
U and C profile structural channels engineered for facade framing, purlin support lines, modular floor joists, and equipment skids with high torsional rigidity.
Heavy gauge flat bar (3mm–60mm thickness) used for gusset plates, stiffeners, base plates, splice joints, and earthing strips with square sheared edges.
Hot-rolled structural coils for light gauge steel (LGS) frame production, alongside pre-painted PPGI / PPGL coils designed for corrugated insulated cladding systems.
High-yield deformed rebar (6mm–40mm) and wire rods formulated for concrete foundation pile caps, anchor cages, and composite floor slab reinforcing systems.
Hot-dip galvanized plain solid round bars utilized in structural tension rods, portal frame sag rods, cross-bracing ties, and heavy mechanical anchor bolts.
ERW and seamless circular/square hollow sections (CHS/SHS) providing superior compression strength for large-span dome trusses and structural scaffolding networks.
Pre-engineered buildings (PEB) and off-site modular fabrication are transforming contemporary civil and industrial engineering across global commercial markets.
Modern EPC contractors face tightening delivery schedules. Off-site prefabrication reduces on-site erection schedules by 35% to 50% compared to cast-in-place concrete structures. Primary portal framing, purlins, and wall girts are detailed in advance, allowing simultaneous foundation pouring and superstructure assembly.
Structural steel represents a cornerstone of the circular green building economy. Steel achieves a post-decommissioning recyclability rate exceeding 98%. When combined with modern high-strength low-alloy (HSLA) formulations such as Q355B and ASTM A572 Grade 50, tonnage requirements are reduced while structural performance remains uncompromised.
In high seismic and typhoon zones throughout Southeast Asia, the Pacific Rim, and the Middle East, prefabricated steel frames offer high strength-to-weight ratios and elastic ductility. Rigid frame moment connections and braced portal frames absorb dynamic energy safely without brittle failure modes.
The manufacturing cluster located in the Daqiuzhuang Industrial Zone (Jinghai District, Tianjin) and Tangshan provides international procurement executives with unprecedented vertical integration.
Within a 30-kilometer logistics radius in Daqiuzhuang, our rolling mills have immediate, zero-delay access to raw continuous-cast billets, hot-rolled steel strip, zinc smelting operations, and pipe extrusion centers. This co-location eliminates domestic freight markups, insulates raw coil feed from supply chain disruptions, and enables rapid transition from design confirmation to shop-floor rolling.
At HZXY, prefabricated steel framing components undergo secondary manufacturing in-house: 3D CNC laser and plasma cutting, automated submerged arc welding (SAW), hydraulic punch-hole detailing, and hot-dip galvanizing baths. Consolidating primary rolling and secondary fabrication within one corporate umbrella prevents intermediate third-party contractor markups.
Engineering cross-reference guiding EPC consultants, structural engineers, and international procurement teams when translating GB standards to ASTM, EN, and JIS equivalents.
| Chinese Standard (GB) | American Standard (ASTM) | European Standard (EN) | Japanese Standard (JIS) | Yield Strength (Min) | Tensile Strength (MPa) | Primary Prefab Applications |
|---|---|---|---|---|---|---|
| Q235B (GB/T 700) | ASTM A36 | EN 10025-2 S235JR | JIS G3101 SS400 | ≥ 235 MPa | 370 – 500 MPa | Light frame columns, purlins, bracing ties, base plates |
| Q355B (GB/T 1591-2018) | ASTM A572 Grade 50 | EN 10025-2 S355JR | JIS G3106 SM490A | ≥ 355 MPa | 470 – 630 MPa | Heavy portal rafters, crane girders, bridge box girders |
| DX51D+Z (GB/T 2518) | ASTM A653 CS Type B | EN 10346 DX51D+Z | JIS G3302 SGCC | Forming Quality | 270 – 500 MPa | Cold-formed C/Z purlins, corrugated roofing, insulated sandwich skins |
| HRB400 / HRB500 | ASTM A615 Grade 60 | EN 10080 B500B | JIS G3112 SD390 | ≥ 400–500 MPa | ≥ 540–630 MPa | Reinforced concrete foundation pile caps, composite slab decks |
| SAE1006 / 1008 | AISI 1006 / 1008 | EN 10016-2 C4D | JIS G3505 SWRM6 | Low Carbon | ≥ 300 MPa | High-ductility drawn wire, mesh fabrication, secondary tying |
*Note: Under GB/T 1591-2018, Chinese mills standardized Q345 into Q355 with enhanced minimum yield parameters. All exported materials are delivered with EN 10204 3.1 Mill Test Certificates.
Material arrives ready for site bolt-up installation, completely detailed to approved engineering drawings.
Our workshop utilizes automated CNC band-sawing and multi-spindle drilling lines. Beams and profiles are cut with +/- 1.0mm tolerance, and bolt holes are reamed precisely to eliminate on-site re-drilling and torch alteration during field erection.
All certified structural welders operate under AWS D1.1 and EN ISO 9606 qualifications. Full penetration groove welds, column-to-base plate fillet welds, and stiffener attachments undergo Non-Destructive Testing (NDT), including Ultrasonic Testing (UT) and Magnetic Particle Testing (MT).
Corrosion protection is executed strictly in compliance with ISO 1461 or ASTM A123, achieving zinc coatings from 600g/m² to over 900g/m² (>85–120 microns). For extreme C4/C5 marine environments, high-build epoxy zinc-rich primer and polyurethane topcoats ensure 30+ year maintenance-free life.
Engineered structural solutions deployed across severe climatic, commercial, and industrial operational environments.
Clear-span portal frames exceeding 48 meters without interior columns. Optimized for heavy logistics distribution centers, overhead crane runways (up to 50-ton capacity), and automated high-bay racking systems.
Heavy steel plates, box girders, and tubular piling delivered for coastal bridges, offshore docks, and viaduct ramps requiring high weld ductility, fatigue resistance, and hot-dip immersion coating.
Curved space frames, tubular truss networks, and composite floor sections engineered for airport terminals, high-speed rail stations, and sports stadiums demanding aesthetic quality and high seismic tolerances.
A proven five-stage order and logistics management workflow designed to eliminate discrepancies between CAD/Tekla models and containerized site delivery.
Client sends architectural and structural drawings (Tekla, AutoCAD, Revit) or a complete Bill of Materials (BOM) specifying steel grades, section sizes, surface coating weights, and project location wind/snow loads.
Our detailers calculate optimal steel cutting layouts using advanced computer nesting software. This minimizes scrap loss, matches inventory stock lengths (6m, 12m), and produces fixed FOB/CIF container quotes within 24 hours.
Following shop drawing sign-off, primary beams, columns, purlins, and connection accessories are processed under continuous QA inspection with strict adherence to dimensional tolerances and full metallurgical lot traceability.
Every member is color-coded and tagged with steel-stamped part numbers corresponding to erection blueprints. Heavy components are secured with steel bundling straps and anti-rust seaworthy packaging for zero-loss transit.
Send your structural specifications, CAD models, or bill of materials directly to our Tianjin export engineering center for complete technical review and competitive container pricing.
Consolidate your structural skeleton, exterior building envelope, and utility piping into a single ocean freight shipment to eliminate multiple-vendor management costs.
High-durability polyester (HDP) and PVDF coated galvanized coils formulated for roll-forming into corrugated external roofing and insulated wall sandwich panels.
Hot-rolled carbon steel square bars engineered for crane rails, heavy security fencing, ornamental grating, and machine foundation base plates.
Epoxy and 3PE coated welded steel pipes designated for high-pressure plant utility lines, industrial plant cooling, and process fluid systems.
Rigid PVC-U and HDPE clean-water supply pipes designed for potable municipal networks, warehouse plumbing mains, and commercial agricultural irrigation.
Heavy-duty PVC drainage and rainwater siphonic pipes matched to prefabricated warehouse gutters and underground municipal stormwater retention systems.
Flanged gate, wafer butterfly, check, and ball valves engineered to integrate seamlessly into facility HVAC, firefighting loops, and process piping mains.
Rigid galvanized steel conduit (RSC/EMT) and flame-retardant PVC electrical tubing protecting complex industrial wiring inside steel warehouse columns and trusses.
Seamless and ERW carbon steel gas transmission lines tested under API 5L and ISO specifications for pressurized fuel, compressed air, and combustible utilities.
Expert engineering insights covering commercial contracting, manufacturing standards, quality testing, and international logistics.
Every heat of steel produced at our Tianjin and Tangshan production bases is tied directly to a comprehensive Mill Test Certificate (MTC) adhering to EN 10204 Type 3.1. We verify chemical composition (carbon equivalent, phosphorus, sulfur) via optical emission spectrometry and inspect mechanical performance (yield, tensile, Charpy V-notch impact down to -20°C). Dimensional tolerances for flange perpendicularity, web straightness, and camber align strictly with ASTM A6/A6M or EN 10034 standards.
Tianjin Port is Northern China's largest maritime freight hub, located just 70 kilometers from our Daqiuzhuang Industrial base. Because we supply heavy structural profiles (H-beams, channel), steel coils, hollow pipes, and light PVC materials, our logistics department calculates mixed-load stowage. Dense, heavy steel plates and beams fill container bottom payload weight limits, while hollow pipes and conduits take up high-cube air space without exceeding gross ton allowances—drastically reducing ocean freight cost per metric ton.
Yes. Our in-house technical detailing team works natively with Tekla Structures, AutoCAD, and PKPM. Clients can submit their IFC models, shop drawings, or general arrangement plans. We convert these into shop fabrication drawings, generate CNC NC1 files for computerized drilling and sawing lines, weld customized column base assemblies, and tag every individual piece with project assembly codes before loading.
For corrosive environments (C3 to C5-M under ISO 12944), we provide two primary solutions: First, hot-dip galvanizing per ISO 1461 / ASTM A123 with zinc coatings reaching 600g/m² to 900g/m² (85µm–125µm+). Second, industrial high-build paint duplex systems consisting of automatic shot-blasting to Sa 2.5 cleanliness, an epoxy zinc-rich primer (70µm), an epoxy micaceous iron oxide intermediate coat (100µm), and an aliphatic polyurethane topcoat (50µm).
Standard warehouse catalog components (standard H-beams, channel, angle, rebar, and plain coils) maintain permanent rolling stock of over 50,000 metric tons at our 1,500-acre yard and can be dispatched within 5 to 10 days. Customized fabricated orders (cut-to-size, drilled, welded, and galvanized structural packages from 200 to 5,000 tons) typically require 20 to 35 business days from final shop drawing sign-off to container loading at Tianjin Port.
Yes, third-party inspections are standard practice. We regularly host independent inspection authorities including SGS, Bureau Veritas (BV), Intertek, and TÜV. Inspectors are provided complete factory access to verify raw plate origin, weld non-destructive testing reports, coating thickness gauges, dimensional calipers, and packaging integrity before container doors are latched.
As a single-source integrated enterprise, HZXY eliminates the need to coordinate between separate structural steel yards, pipe manufacturers, and fitting suppliers. You can consolidate heavy H-beams, roofing coils, deformed rebars, galvanized water pipes, PVC drainage lines, and industrial valves within a single commercial contract, single L/C, and unified bill of lading.
Daqiuzhuang Industrial Zone, Jinghai District, Tianjin, China · Production Bases in Tianjin & Tangshan
